CVE-2025-32919: Privilege Escalation in Windows License plugin for Checkmk Windows Agent

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-10-09 · updated 2026-10-19
Weakness: CWE-427

Description

Use of an insecure temporary directory in the Windows License plugin for the Checkmk Windows Agent allows Privilege Escalation. This issue affects Checkmk: from 2.4.0 before 2.4.0p13, from 2.3.0 before 2.3.0p38, from 2.2.0 before 2.2.0p46, and all versions of 2.1.0 (EOL).

Affected products

Checkmk GmbH Checkmk: from 2.1.0 before 2.2.0; 2.2.0, 2.2.0-p1, 2.2.0-p10, 2.2.0-p11, 2.2.0-p12, 2.2.0-p13 (+88) — fixed in 2.2.0

How to fix

Upgrade to a fixed version: Checkmk GmbH Checkmk 2.2.0. Check the vendor advisory for mitigations.

References

https://checkmk.com/werk/18207
https://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20250724-01_Checkmk_Agent_Privilege_Escalation_via_Insecure_Temporary_Files
http://seclists.org/fulldisclosure/2025/Oct/6

Get alerted when CVE-2025-32919 or the next vulnerability affects your stack